inputstream to string

inputstream to string

Author: hmkcode

java-inputstream-string/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+  <classpathentry kind="src" path="src/test/java" output="target/test-classes" including="**/*.java"/>
+  <classpathentry kind="src" path="src/main/java" including="**/*.java"/>
+  <classpathentry kind="output" path="target/classes"/>
+  <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+  <classpathentry kind="var" path="M2_REPO/commons-io/commons-io/2.4/commons-io-2.4.jar"/>
+  <classpathentry kind="var" path="M2_REPO/com/google/guava/guava/14.0.1/guava-14.0.1.jar"/>
+</classpath>

java-inputstream-string/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.hmkcode</groupId>
+  <artifactId>java-inputstream-string</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <name>java-inputstream-string</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencies>
+    <dependency>
+		<groupId>commons-io</groupId>
+		<artifactId>commons-io</artifactId>
+		<version>2.4</version>
+	</dependency>
+	<dependency>
+		<groupId>com.google.guava</groupId>
+		<artifactId>guava</artifactId>
+		<version>14.0.1</version>
+	</dependency>
+  </dependencies>
+</project>

java-inputstream-string/src/main/java/com/hmkcode/App.java

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+package com.hmkcode;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+public class App 
+{
+    public static void main( String[] args ) throws IOException
+    {
+    	
+        // 1. By java.util.Scanner
+    	InputStream inputStream = new ByteArrayInputStream("hmkcode..inputStream to String".getBytes());
+    	System.out.println("getStringByScanner: "+InputStreamToString.getStringByScanner(inputStream));
+    	
+        // 2. By BufferedReader
+    	inputStream = new ByteArrayInputStream("hmkcode..inputStream to String".getBytes());
+    	System.out.println("getStringByBufferedReader: " +InputStreamToString.getStringByBufferedReader(inputStream));
+
+        // 3. By Apache IO
+    	inputStream = new ByteArrayInputStream("hmkcode..inputStream to String".getBytes());
+    	System.out.println("getStringByApacheIO IOUtils.toString: "+InputStreamToString.getStringByApacheIO_toString(inputStream));
+    	
+        // 4. By Apache IO
+    	inputStream = new ByteArrayInputStream("hmkcode..inputStream to String".getBytes());
+    	System.out.println("getStringByApacheIO IOUtils.copy: "+InputStreamToString.getStringByApacheIO_copy(inputStream));
+    	
+        
+    }
+    
+}

java-inputstream-string/src/main/java/com/hmkcode/InputStreamToString.java

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+package com.hmkcode;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.StringWriter;
+import java.util.Scanner;
+import org.apache.commons.io.IOUtils;
+
+public class InputStreamToString {
+
+    // 1. By java.util.Scanner
+    public static String getStringByScanner(InputStream inputStream){
+    	return new Scanner(inputStream,"UTF-8").next();
+    }
+    
+    // 2. By BufferedReader
+    public static String getStringByBufferedReader(InputStream inputStream) throws IOException{
+    	BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream));
+    	String line = "";
+    	String result = "";
+    	while((line = bufferedReader.readLine()) != null)
+    		result += line;
+    	return result;
+    }
+    
+    // 3. By Apache IO
+    public static String getStringByApacheIO_toString(InputStream inputStream) throws IOException{
+    	return IOUtils.toString(inputStream);
+    }
+    
+    // 4. By Apache IO
+    public static String getStringByApacheIO_copy(InputStream inputStream) throws IOException{
+    	StringWriter writer = new StringWriter();
+        IOUtils.copy(inputStream, writer, "UTF-8");
+        return writer.toString();
+    }
+    
+
+}